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Title:
RADIOLABELED TYROSINE DERIVATIVE AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/063095
Kind Code:
A1
Abstract:
The prevent invention provides a radiolabeled tyrosine derivative which has excellent LAT1 selectability, higher retention at a tumor or cancer site, and a degree of clearance that does not cause side effects, and which can be safely manufactured at favorable purity by a safe method suitable for industrial production. The present invention provides a radiolabeled compound represented by formula (I), or a pharmaceutically-acceptable salt thereof. [In the formula, each symbol is as defined in the description.]

Inventors:
KANEDA KAZUKO (JP)
SHIRAKAMI YOSHIFUMI (JP)
KADONAGA YUICHIRO (JP)
TOYOSHIMA ATSUSHI (JP)
FUKASE KOICHI (JP)
NAGATA HIROSHI (JP)
Application Number:
PCT/JP2023/034114
Publication Date:
March 28, 2024
Filing Date:
September 20, 2023
Export Citation:
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Assignee:
UNIV OSAKA (JP)
International Classes:
C07C229/34; A61K41/00; A61K51/04; A61P35/00; A61P35/02; C07B59/00; C07F5/02
Domestic Patent References:
WO2021225147A12021-11-11
WO2019027059A12019-02-07
Foreign References:
JP2000212185A2000-08-02
Other References:
KRUMMEICH, C. ; HOLSCHBACH, M. ; STOCKLIN, G.: "Direct n.c.a. electrophilic radioiodination of tyrosine analogues; their in vivo stability and brain-uptake in mice", APPLIED RADIATION AND ISOTOPES, ELSEVIER, OXFORD., GB, vol. 45, no. 9, 1 September 1994 (1994-09-01), GB , pages 929 - 935, XP024685318, ISSN: 0969-8043, DOI: 10.1016/0969-8043(94)90230-5
KRUMMEICH, C. HOLSCHBACH, M.: "Kit Preparation of n.c.a. 3-[^1^2^3I]Iodo-l-@a-methyltyrosine [^1^2^3I]IMT, 3-[^1^2^3I]Iodo-O-methyl-l-tyrosine [^1^2^3I]OMIT and 3-[^1^2^3I]Iodo-O-methyl-l-@a-methyltyrosine [^1^2^3I]OMIMT Using Sep-Pak^T^M C-18 Cartridges", APPLIED RADIATION AND ISOTOPES, ELSEVIER, OXFORD., GB, vol. 46, no. 9, 1 September 1995 (1995-09-01), GB , pages 917 - 921, XP004050703, ISSN: 0969-8043, DOI: 10.1016/0969-8043(95)93109-Y
HIGASHI TATSUYA: "Novel radioisotope therapies for thyroid cancers: a future perspective", JOURNAL OF THE JAPANESE SOCIETY OF ENDOCRINE AND THYROID SURGERY, vol. 35, no. 3, 1 January 2018 (2018-01-01), pages 196 - 199, XP093149927
WIRIYASERMKUL PATTAMA, MORIYAMA SATOMI, KONGPRACHA PORNPARN, NAGAMORI SHUSHI: "Drug Discovery Targeting an Amino Acid Transporter for Diagnosis and Therapy", YAKUGAKU ZASSHI, vol. 141, no. 4, 31 August 2020 (2020-08-31), pages 501 - 510, XP093057908, DOI: 10.1248/yakushi.20-00204-2
Attorney, Agent or Firm:
KAMADA, Mitsunori et al. (JP)
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